There are 8 cups/ 4 pints or  16 scoops in 2 quarts of ice cream.
Money that is paid for the use of money is called interest. When you keep your money in a bank savings account, the bank credits your account with interest.
Interest: how much is paid for the use of money (as a percent, or an amount) People can always find a use for money, so it costs to borrow money.